I've got an unrelated experience to share with you, but it just might be of some relevance.
A few months ago, I got a call from Mom saying she'd had an EKG which showed she had one of those "silent" heart attacks (where the person doesn't even realize they've had it, the symptoms are so mild or feel like something else).
As the week went on, I kept calling her...and each time I called, I could hear the shortness of breath and so on. Finally, I just got in the car and made the drive from Colorado to Vancouver BC because I was so worried.
I spent about a month there, telling her all about good fats, healthy foods and so on. Did all kinds of research and relayed lots of information to her. I cooked breakfast and dinner for her every night. Lots of salads, fish and good fats. I wanted to show her that eating well didn't mean eating tasteless "rabbit" food. I was also doing my best to convince her to stop smoking, but she kept on putting it off. The cardiologist said she needed to quit smoking immediately, but then when she got a prescription from her regular doctor for Zyban to help with quitting, she took that doc's instructions to wait for the medication to kick in a bit before stopping as another chance to delay the quitting. At one point, she was having awful symptoms...that seemed like she might be having another mild heart attack - nausea, shortness of breath, arm pain and so on. I tried to convince her to go to the ER, but she refused.
After a weekend of saying she needed to go to the ER, she finally agreed...and we headed off to the hospital on a Monday morning. But..first, she wanted to go out for breakfast. She proceeded to order what I consider a "heart attack on a plate" - pancakes, syrup, hashbrowns, sausages etc. She chain smoked afterwards while I was still finishing my egg white omelet and salad. She downed a bunch of coffee loaded with sugar and cream too.
I couldn't believe what I was seeing.
I had wanted to take her grocery shopping to show her where to get the "good" groceries and show her how to read the labels to watch for things like trans fats and hidden sugars. But...she kept putting this one off too.
After a little while, I started to think that maybe she didn't want to get better. I was pretty upset and I remember sort of railing at the craziness of her behaviour in my own mind...thinking, "But, but...I want her to want to live".
Went to several doc's appts. with her, lotsa running around. Meanwhile, I was giving her TONS of information. But she wouldn't go for it.
Or so it seemed.
I left to go back home to Colorado after about 4 weeks of this.
I've been back for about a month now.
Guess what?
She's quit smoking, she says she wants to try low-carb and she has been walking for 1/2 an hour daily. She also wants to get a treadmill.
Furthermore, after some specialized testing at the hospital (heart scan), it turns out that the abnormal EKG she had was some sort of anomaly...and that her heart is slightly enlarged, but otherwise healthy.
I think it's perhaps very hard for parents to listen to their children, no matter how old that 'child' might be. Maybe it's threatening to think that suddenly they are the ones needing care. Maybe it's scary to have the tables turned on them, to lose that sense of being 'in charge' - at least with their own children. I'm in my thirties, but I got the distinct impression that there's some part of my Mom that still sees me as being six years old, with pigtails and MaryJanes. I couldn't possibly take care of her, and there's no way I knew what I was talking about, because SHE's the parent.
Funny thing though...all that information I gave her, all the cooking, the insistence on walking as a good place to start, the encouragement to quit smoking....wasn't in vain at all. She's using the information now, but she needs to feel like it's all her idea. It can't be about her daughter "telling her what to do".
If you can find a way to reduce that "telling her what to do" aspect, and continue to impart the information and resources, as though you're telling your boss about something...that you're just providing helpful information rather than demanding that she "do something"...you might find she'll start to act on it.
I was really disappointed when I went up to Vancouver, because it seemed like Mom was determined to stay sick, and determined to ignore me...at least when it came to the possibility that I might know something, or that I could possibly care for her, instead of her always being the one to care for me. This was met with denial, resistance, stonewalling and so on. The minute I left though...she stood teary-eyed on the deck watching me take my suitcase to the car, and choked out something about how much she'd miss me. The very next day she quit smoking!!!!!!
Anyway, I hope this helps...
Don't despair...k?
Sara